Improved mode of deydfg glue



G. GUENTHER. MODE of DRYING GLUE.

No. 65,377. Patented June 4, l867.

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GEORGE eunNfrnnn, or NEW YORK, N. YQ Leners Patent No. 65,3?7, aan: .nm 4, les?.

IKPBOVED MGDE OP DRYING GLUB.

'ro ALL WHoMvIT MAY coucnnn:

Beit known that l', GEORGE GUENTIIER, of the city, county, and State of New York, have a certain new and useful Mode of Drying Glue on Revolving o1' Rotating Metallic Surfaces; and I do hereby declare that the following is 'a full, clear, and exact description thereof, reference being had to the accompanying drawings, umkingapart of this specification, in which- Figure l is a front'elcvation.

Figure 2, a vertical longitudinal section.

Figure 3,'an end view.

Figure 4, a transverse vertical section.

Figure 5, a view ot' the scraper detached.

Figures 6 and 7, a view of a modification of the cylinder Like letters refer to similar parts in all of the Afigures.

The nature of my invention consists in the mode of dryingglueupon revolving or rotating metallic surfaces by the use of steam applied internally, to the cylinders, or hot airexternally, or both, as is hereinafter set fort-h. Hcretoforqwhcn glue has been manufactured to any extent, it has been dried upon netting, by the simple action of the air, which, at the best, is slow, 'and' in damp or rainy weather exceedingly diiiicult, while a high degree of heat, in combination with metallic surfaces, has been found injurious to the glue. By my mode I avoid these difficulties, and` can produce a superior article with rapidity in all conditions of the weather.

To enable others skilled in the art to make the necessary or desirable machinery to dry glue bymy mode .I will` proceedto describe its construction and operation. i

As the dimensions mayall'be varied, without changing tue principle or operation of the machinery, a description or detail of sizes will not be necessary'. A convenient size will he found by making the cylinder A about six feet long and two feet in diameter, with corresponding proportions in the other parts. The cylinder A is attached to the shaft F by ordinary heads or crown-sheets, when used with steam, but will not need to be so constructed as to withstand a high pressure, as but a little higher pressure than atmospheric steam will be required, as much higher would increase the temperature of the cylinder so as to injure the glue. Steam is admitted through the shaft F, which is made holloiw for that purpose, and passes out ot' the shaft Aby the holes or 'perforations a. The interior of the cylinder is provided with spiral ducts or guides b, which carry thewater of condensation to the centre and'discharge it through theopposite end of the shaft. The exterior is made smooth, and it' made of east iron turned off, and when made of cast iron it will be found convenient in casting to make them shorter than the length given. This cylinder is supported by the posts or standards H, and revolved by the pulley-wheel G, or by other convenient or suitable means. Direhtly below the cylinder I place a trough, B, in which the glue-stock is placed. This trough is supported in place by the bolts or pinscwhich pass through the slot or mortise d of the posts H, and is raised so that its contents will be brought in contact with the cylinder by the treadle C. This trough will 'be' made in any convenient form. The treadle C is pivoted atf to a. post or standard, which, like the posts H, is firmly attached to the base or foundation D. At the hack of the machine I attach a scraper, I, to the post K, or other suitable attachment, which scraper is provided with a sharp edge which is brought to hear against thecylinder by a spring, z', which spring rests against the scraper and against the bar J, and is held in place by the rod or bark'. Thislrod is provided with a thumb-screw to hold the scraper back while the cylinder is taking on glue-stock and while itis being dried. Where the scraper is of any cousiderable length, more than one of these ro'ds and springs will be necessary. 'When hot air isto be used, either alone or in conjunction with steam, I provide for its introduction .by a perforated plate or register, E, placed in the base' D or in the door of the building, andin that case I mount the trough. upon trucks or wheels, so that it can be removed as soon asa sufficient amount ot stock is takenl on by the cylinder, so thatits action upon the cylinder will be direct from the register. Hot air may also be driven through thecylinders in pla-ce of steam- Figs. 6 and 'l' show a modification of the'eylinder and scraper. As shown there the cylinder, instead of being made perfect,'is made'of a series of disks attached to the shaft, which gives more surface for drying purposes than the plain cylinder. In case steam is used with them they will be made hollow, and the ducts for the water of eondensationplaeed on the sideser heads; if hot air only, then they may be made of solid plates. The Scrapers will necessarily he made so as to take the sides as well as the periphery.

In operation, when the cylinder is.put in motion the trough is elevated so that the cylinder will dip, and it is held there until a su'loient quantity of glue-stock is taken on, when it is lowered or removed. The rotation continues untilthe glue is suiciently dried, when the scraper I is-applied and it is taken oif. The scraper iis then Withdrawn and the operation repeated. I

It will be found, by testing this method, that glue can he dried without injury with much greater rapidity and faeilitythan hy any of the modes heretofore in use.

Having thus fully dcseribedmy modev of drying glue, and the necessary' machinery to carry it out, what 1'. claim as new and as my invention, and desire to secure by Letters Patent, is-A The'mode of drying glue by revolving or rotating metallic surfaces having their temperature raised either by steam' or h'ot air, substantially as described. I

i GEORGE GUENTH'ER.

Witnesses L. L. Bonn, E. A; WEST. 

